Money Laravel Package

Product Decisions This Supports

• Monetization & Payments Features

  • Implement precise financial calculations (e.g., subscriptions, invoicing, tax calculations) without floating-point errors.
  • Enable multi-currency support for global applications (e.g., e-commerce, SaaS platforms).
  • Build features like split payments, currency conversion, or dynamic pricing tiers with confidence.

• Roadmap Prioritization

  • Build vs. Buy: Avoid reinventing financial math logic (e.g., rounding, allocation, exchange rates). Leverage this package to accelerate development.
  • Scalability: Use the immutable Money object to ensure thread-safe operations in high-concurrency systems (e.g., payment processors).
  • Compliance: Align with financial regulations (e.g., exact decimal arithmetic for audits, tax reporting).

• Use Cases

  • Marketplaces: Split fees/payouts across vendors with allocate() (e.g., 60/30/10 splits).
  • Crypto Integration: Support crypto-currencies (e.g., Bitcoin, Ethereum) via CryptoCurrencies class.
  • Localization: Format amounts in user-preferred locales (e.g., IntlLocalizedDecimalFormatter).
  • Legacy Migration: Gradually adopt the Money pattern via the Teller adapter for existing float-based systems.

When to Consider This Package

• Adopt if:

  • Your app handles any financial data (even internally, e.g., pricing models, analytics).
  • You need exact arithmetic (e.g., 0.1 + 0.2 !== 0.3 in floats breaks your logic).
  • Your team uses Laravel/PHP and wants to avoid custom financial libraries.
  • You require multi-currency support with exchange rates (e.g., Swap or Exchanger integrations).
  • You’re building auditable systems (e.g., accounting, compliance tools).

• Look elsewhere if:

  • You’re using non-PHP stacks (e.g., Python’s decimal.Decimal, Java’s BigDecimal).
  • Your use case is trivial (e.g., displaying pre-calculated prices without math operations).
  • You need real-time exchange rate APIs (this package provides the math, not live rates—pair with a service like ExchangeRate-API).
  • Your team lacks PHP 8.0+ (requires BCMath extension; alternatives like brianium/paragonie_number exist for older PHP).

How to Pitch It (Stakeholders)

For Executives:

*"This package eliminates a critical technical debt risk: floating-point errors in financial calculations. Imagine a $100 invoice with a 10% discount—using floats, the system might charge $99.997634 instead. With moneyphp/money, we guarantee precise, auditable transactions while accelerating development. It’s a drop-in solution for:

• Global payments (multi-currency, exchange rates).
• Pricing engines (dynamic tiers, splits).
• Compliance (exact decimal arithmetic for taxes/audits). No reinventing the wheel—just safer, faster financial logic."*

For Engineers:

*"This is the Fowler Money Pattern implemented in PHP, solving:

• Floating-point hell: Uses strings/BCMath for exact arithmetic (e.g., Money::EUR(500)->add(Money::EUR(500)) === Money::EUR(1000)).
• Multi-currency: Built-in ISO currencies + crypto support (e.g., Money::BTC(0.5)).
• Exchange rates: Integrates with Swap or Exchanger for dynamic conversions.
• Performance: Optimized for high-volume systems (e.g., payment processing). Tradeoff: Requires BCMath (enabled by default in PHP). Alternatives: If BCMath is blocked, we can explore gmp or brianium/paragonie_number as fallbacks. Next steps:

1. Add to composer.json (composer require moneyphp/money).
2. Replace floats with Money objects (e.g., Money::USD(1000) instead of 1000.00).
3. Leverage allocate() for splits, Converter for exchanges, and IntlLocalizedDecimalFormatter for localization. ROI: Faster dev, fewer bugs, and future-proof financial logic."*